Sächsische Landesbibliothek, Dresden (D-Dl): Mus.2796-P-1.This file is based on high-resolution images obtained from the source using a method explained on this page. Full SLUB resolution. Schrank II collectionListed on RISM as a Duet by Karl Friedrich Rieck, however it is the same work as the Concerto by Heinichen in Rostock RISM 200044362.